Seamless support. This one-and-done yoga tank is made using our seamless construction for a smooth fit and features built-in support for a fuss-free practice. Built in shelf bra with option to add padded cups Racerback Bra: 85% Nylon, 15% Elastane Cup lining: 95% Nylon, 5% Elastane Body: 100% Nylon No major signs of wear or flaws